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EFEKTIFITAS BERBAGAI CARA PEMASAKAN TERHADAP PENURUNAN KANDUNGAN ASAM SIANIDA BERBAGAI JENIS REBUNG BAMBU Kencana Putra, I Nengah
Agrotekno Vol. 15, No. 2 Agustus 2009
Publisher : Universitas Udayana

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Abstract

The aim of this research was to find out cyanide acidcontent of some local varieties of bamboo shoot, and to studythe effect of cooking methods on the lowering of the cyanideacid content. The study was done on four local varieties ofbamboo shoot, i.e.: buluh, tabah, tali, and ampel, whereasthe methods of cooking studied were boiling, steaming,boiling with immersing in water previously, and steamingwith immersing in water previously. The results showed thatthe cyanide content of bamboo shoot of ampel, tabah, tali,and buluh variety were 35.76, 22.70, 21.52, and 20.25mg/100g, respectively. Cooking process both boiling andsteaming could reduce cyanide content of the bamboo shoots.Immersing in water for 12 hours before boiling or steamingcould also reduce the cyanide acid content.
Optimasi Proses Ekstraksi Pektin Dami Buah Nangka (Artocarpus heterophyllus Lamk) I Nengah Kencana Putra
agriTECH Vol 30, No 3 (2010)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (440.683 KB) | DOI: 10.22146/agritech.9668

Abstract

The objective of this research was to determine the optimum  condition  on extraction process of jackfruit rags pectin. The experiment was designed by Randomized Block Design (RBD) within 3 x 3 factorial experiment. The first factorwas pH of solvent consisted of 3 levels: 1.5, 2.5, and 3,5. The second factor was ratio of jackfruit rags to solvent, con-sisted of 3 levels: 1:5, 1:6 and 1:7. Results repealed that the solvent pH effected significantly yield, total ash, equivalentweigh and anhydrogalacturonic acid content of pectin produced. The optimum conditions for jackfruit rags pectin extraction were: the pH of extracting solvent was 1.5, and the ratio of jackfruit rags to solvent was 1:5. Those condi- tions gave the yield of 4.45 %, produced pectin having total ash (2.82 %), equivalent  weigh (3,022.24 g/eqi), methoxylcontent (8.16 %), and anhydrogalacturonic acid content (88.01 %).ABSTRAKPenelitian ini bertujuan untuk menentukan kondisi optimal pada proses ekstraksi pektin dami buah nangka. Rancanganpenelitian  yang digunakan adalah Rancangan Acak �elompok (RA�) dengan pola percobaan faktorial  3 x 3. Faktorpertama adalah pH cairan pengekstrak yang terdiri dari 3 taraf: pH 1,5; 2,5 dan 3,5. Faktor kedua adalah perbandingandami buah nangka dengan cairan pengekstrak yang terdiri dari 3 taraf: 1:5, 1:6 dan 1:7. Hasil penelitian menunjukkan pH cairan pengekstrak berpengaruh nyata terhadap rendemen, kadar abu, berat ekivalen dan kadar asam anhidrogalak- turonat. Kondisi optimal untuk ekstraksi pektin dami buah nangka adalah: cairan pengekstrak pH 1,5, dengan perband- ingan dami nangka dan cairan pengekstrak 1:5. Kondisi ini menghasilkan rendemen 4,54 %, serta pektin dengan kara- kteristik: kadar abu 2,82 %, berat ekivalen 3.022,24 g/eki, kadar metoksil 8,16 % dan kadar asam anhidrogalakturonat88,01 %.
Optimisasi Suhu Pemanasan dan Kadar Air pada Produksi Pati Talas Kimpul Termodifikasi dengan Teknik Heat Moisture Treatment (HMT) I Nengah Kencana Putra; Ni Wayan Wisaniyasa; Anak Agung Istri Sri Wiadnyani
agriTECH Vol 36, No 3 (2016)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (585.872 KB) | DOI: 10.22146/agritech.16602

Abstract

One of the physically starch modification technique is heat-moisture treatment (HMT). This technique can increase the resistance of starch to heat, mechanical treatment, and acid during processing.  This research aimed to find out the influence of heating temperature and moisture content in the modification process of cocoyam starch  with HMT techniques on the characteristic of product, and then to determine the optimum heating temperature and moisture content in the process. The research was designed with a complete randomized design (CRD) with two factors factorial experiment.  The first factor was temperature of the heating consists of 3 levels namely 100 °C, 110 °C, and 120 °C. The second factor was the moisture content of starch which consists of 4 levels, namely 15 %, 20 %, 25 %, and 30 %. The results showed that the heating temperature and moisture content significantly affected water content, amylose content and swelling power of modified cocoyam starch product, but the treatment had no significant effect on the solubility of the product. HMT process was able to change the type of cocoyam starch from type B to type C. The optimum heating temperature and water content on modified cocoyam starch production process was 110 °C and 30 % respectively. Such treatment resulted in a modified cocoyam starch with moisture content of 6.50 %, 50,14 % amylose content, swelling power of 7.90, 0.0009% solubility, paste clarity of 96.310 % T, and was classified as a type C starch. ABSTRAKSalah satu teknik modifikasi pati secara fisik adalah teknik Heat Moisture Treatment (HMT). Teknik ini dapat meningkatkan ketahanan pati terhadap panas, perlakuan mekanik, dan asam selama pengolahan. Penelitian ini bertujuan untuk mengetahui pengaruh suhu dan kadar air pada proses modifikasi pati talas kimpul dengan teknik HMT terhadap karakteristik produk, dan selanjutnya menentukan suhu dan kadar air yang optimal dalam proses tersebut. Penelitian ini dirancang dengan rancangan acak lengkap (RAL) dengan percobaan faktorial dua faktor. Faktor pertama adalah suhu pemanasan, terdiri dari 3 taraf yaitu 100 °C, 110 °C, dan 120 °C. Faktor kedua adalah kadar air pati, terdiri dari 4 taraf yaitu 15 %, 20 %, 25 %, dan 30 %. Hasil penelitian menunjukkan, suhu pemanasan dan kadar air pati secara nyata mempengaruhi kadar air, kadar amilosa dan swelling power pati talas kimpul termodifikasi, tetapi tidak berpengaruh nyata terhadap kelarutannya. Proses HMT mampu mengubah tipe pati talas kimpul dari tipe B menjadi tipe C. Suhu pemanasan dan kadar air optimal pada produksi pati talas kimpul termodifikasi adalah 110 °C dan 30 %. Perlakuan tersebut menghasilkan pati talas kimpul termodifikasi dengan karakteristik seperti kadar air 6,50 %, kadar amilosa 50,14 %, swelling power 7,90, kelarutan 0,001 %, kejernihan pasta 96,31 % T, dan dengan klasifikasikan pati tipe C.
PELATIHAN PENGOLAHAN KACANG TANAH DI KELURAHAN PENATIH KECAMATAN DENPASAR TIMUR KOTAMADYA DENPASAR P.T. Ina; I.G.A. Ekawati; I.N. Kencana Putra; P.A.S. Widpradnyadewi; I.D.P.K. Pratiwi
Buletin Udayana Mengabdi Vol 16 No 3 (2017)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

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Abstract

Kelompok wanita tani (KWT) Ratna Tani merupakan kelompok wanita tani dari kelurahan Penatih dan merupakan KWT binaan Dinas Pertanian, Perkebunan, Peternakan dan Perikanan Pemerintah kota Denpasar. Keterbatasan kemampuan KWT Ratna Tani dalam mengolah kacang tanah menjadi dasar kegiatan pengabdian sehingga diharapkan dapat meningkatkan pengetahuan dan keterampilan KWT dalam pengolahan kacang tanah. Kacang tanah dapat dijadikan produk olahan yang beraneka ragam baik olahan kacang tanpa adonan maupun olahan kacang dengan adonan. Kacang atom dan kacang susu merupakan salah satu olahan kacang dengan adonan. Metode pemecahan masalah dari kegiatan pengabdian ini yaitu berupa tindakan nyata dalam menyampaikan informasi ilmiah pengolahan kacang tanah menjadi produk-produk olahan melalui praktek penggunaan teknologi pengolahan tepat guna dan pelatihan teknik pengemasan produk olahan kacang dalam upaya pengembangan usaha industri rumah tangga olahan kacang tanah. Kegiatan pengabdian masyarakat berupa kegiatan pelatihan 1 hari yang terlaksana pada hari kamis tanggal 4 agustus 2016 tentang teknologi pengolahan kacang tanah menjadi produk olahan seperti kacang atom dan kacang susu. Keberhasilan dari kegiatan Pengabdian Masyarakat ini tercapai karena adanya peran serta dari peserta selama penyuluhan melalui aktivitas yang berkembang dalam diskusi dan kehadiran peserta selama kegiatan berlangsung.
Sifat Fungsional Campuran Kedelai dan Rumput Laut Ditinjau dari Efek Hipoglikemik Secara In Vivo IKetut Suter; INengah Kencana Putra; NiLuh Ari Yusasrini; NiMade Yusa
Media Ilmiah Teknologi Pangan (Scientific Journal of Food Technology) Vol 2 No 2 (2015)
Publisher : Master Program of Food Science and Technology, Faculty of Agricultural Technology, Udayana University

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Abstract

Penelitian ini bertujuan untuk mengetahui efek hipoglikemik diet campuran kedelai danrumput laut pada tikus diabetes induksi alloxan. Empat puluh dua ekor tikus Wistar jantandengan berat ± 100 – 150 g digunakan dalam penelitian ini. Tikus dibagi menjadi 7 kelompokdimana masing-masing kelompok terdiri dari 6 ekor tikus. Tikus kelompok 1 digunakan sebagaikontrol sedangkan kelompok yang lain diinjeksi dengan alloxan (100 mg/kg bb) untukmenginduksi diabetes. Masing – masing kelompok diberi diet yang berbeda yaitu diet standar,diet kedelai, diet konsentrat protein kedelai, diet rumput laut, diet campuran kedelai - rumput lautdan diet campuran konsentrat protein kedelai – rumput laut. Pengamatan terhadap konsumsipakan dilakukan setiap hari sedangkan analisis gula darah, gula urin dan penimbangan berattikus dilakukan secara periodik setiap 10 hari sekali selama 30 hari. Hasil analisis menunjukkanbahwa rata-rata kadar gula darah tikus sebelum injeksi alloxan yaitu 121 mg/dL, sedangkan gulaurinenya berkisar 100 mg/ dL. Injeksi alloxan menyebabkan kenaikan gula darah menjadi 184,91mg/dL – 309 mg/dL, peningkatan gula urine, penurunan konsumsi pakan dan penurunan berattikus. Pemberian diet standar tidak mampu mengendalikan kenaikan gula darah, sedangkanpemberian diet kedelai(PK), diet konsentrat kedelai (PKP), diet rumput laut (PRL), dietcampuran kedelai-rumput laut (PKPRL) dan campuran konsentrat kedelai-rumput laut (PKPRL)mampu menekan peningkatan gula darah dan gula urine pada hewan coba.Penurunan gula darahberturut-turut sebesar 34,27 % (PK), 14,13 % (PKP), 20,78 % (PRL), 11,67 % (PKRL) dan32,64 % (PKPRL). Hal ini menunjukkan bahwa diet kedelai, konsentrat protein kedelai, rumputlaut maupun campuran antara kedelai-rumput laut dan konsentrat protein kedelai-rumput lautmemiliki efek hipoglikemik jika dibandingkan dengan diet standar.
Pengaruh Penggunaan Getah Pepaya (Carica papaya L.) pada Proses Dekafeinasi Terhadap Penurunan Kadar Kafein Kopi Robusta Juwita Mayningsih Andari Putri; Komang Ayu Nocianitri; Nengah Kencana Putra
Media Ilmiah Teknologi Pangan (Scientific Journal of Food Technology) Vol 4 No 2 (2017): Scientific Journal of Food Technology
Publisher : Master Program of Food Science and Technology, Faculty of Agricultural Technology, Udayana University

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Abstract

Decaffeination is a process for reduction of caffeine content in coffee beans. This study is aimed to find out the effects of papaya’s sap (Carica papaya L.) addition on the caffeine content of robusta coffee and to know the concentration of papaya’s sap addition that could produce decaffeinated coffee according to the requirements. This study used a Completely Randomized Design (CRD), with five levels of papaya’s sap concentration namely 0%, 1.5%, 3%, 4.5%, and 6%, and 3 repetitions, so that obtained 15 experimental units. The results of the study showed that the use of papaya’s sap affected caffeine content of robusta coffee. Addition of 6% papaya’s sap produced decaffeinated coffee according to the requirements, with the caffeine content of 0.24%, moisture content of 11.34%, ash content of 0.07%, and protein content of 9.72%.
Optimasi Suhu dan Waktu Ekstraksi Kulit Kayu Manis (Cinnamomum burmanii) dengan Gelombang Ultrasonik Menggunakan Response Surface Methodology (Rsm) Ni Luh Putu Diah Rupini; I Wayan Rai Widarta; I Nengah Kencana Putra
Media Ilmiah Teknologi Pangan (Scientific Journal of Food Technology) Vol 4 No 1 (2017)
Publisher : Master Program of Food Science and Technology, Faculty of Agricultural Technology, Udayana University

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Abstract

Cinnamon is a spice containing components of volatile oil, non-volatile oil and starch. Thisstudy was aimed to determine the temperature and extraction time of cinnamon bark(Cinnamomum burmanii) with optimum ultrasonic waves, so as to produce oleoresin.Optimization of the temperature and extraction time of cinnamon bark was done by usingResponse Surface Methodology. The design of central composite was used to study theeffects of temperature and time on the extraction of cinnamon bark with ultrasonic waves.The results showed that the temperature of 58,3C and 77,7 minutes extraction of cinnamonbark with ultrasonic waves produced oleoresin yield; and the highest content ofcinnamaldehyd of cinnamon bark respectively 26,5770% and 1,7280%. Meanwhile, thevalue of the refractive index is equal to 1,5750 and the density is equal to 1,0360 g/cm3.
Identification of Coloring Additives used in Jajan Sirat Production Sold at Pasar Umum Negara, District of Negara, Jembrana Regency, Bali Province I Komang Ari Andika; Putu Timur Ina; I Nengah Kencana Putra
Media Ilmiah Teknologi Pangan (Scientific Journal of Food Technology) Vol 3 No 1 (2016)
Publisher : Master Program of Food Science and Technology, Faculty of Agricultural Technology, Udayana University

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Abstract

This study aimed to identify the types and doses of coloring additives used in the making of jajan Sirat which was sold at Pasar Umum Negara, Jembrana, Bali. Before taking samples, surveys and interviews were conducted to the traders and consumers regarding their understanding on coloring additives. The samples were taken from some traders at Negara public market, District of Negara, Jembrana, Bali. Then, the samples were prepared by using woolen thread absorption technique. Qualitative analytical procedure were conducted using chromatographic paper analysis, while quantitative analysis were conducted using spectrophotometer UV-VIS. Paper chromatography analysis showed, the samples contained restricted synthetic coloring substances (GN scarlet, orange G and sudan I) and allowed coloring substances (tartrazine, sunset yellow, karmoisin, amaranth, and eritrosin). Spectrophotometric analysis showed that most of samples contained coloring substances exceeding the prescribed dosage. The percentage of samples containing overdosed coloring substances was 58.33 %, whereas the percentage of samples containing coloring substances under permitted dosage was 16.67 %. The percentage of samples containing banned dye was 25.00 %.
KARAKTERISASI SENYAWA BIOAKTIF EKSTRAK DAUN SEMBUNG(Blumea balsamifera (L)DC) DARI BEBERAPA JENIS PELARUT Ida Bagus Ketut Mantra; I Nengah Kencana Putra; Luh Putu Wrasiati
Media Ilmiah Teknologi Pangan (Scientific Journal of Food Technology) Vol 6 No 1 (2019): Scientific Journal of Food Technology (March)
Publisher : Master Program of Food Science and Technology, Faculty of Agricultural Technology, Udayana University

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Abstract

Sembung (Blumea balsamifera (L) DC) is a species plant on Blumea genus, andAstereceae (compositae)family. The leaf of Sembung is used by human as empiric treatment with extraction or infuse techniqueto become “jamu” , its has function as functional drink, because its consist of flavonoid and alkaloidcompound, that has an antioxidant potency. The purpose of this research are to study of effect growthleaf level and some of organic solvent to characterizetion simplisia powder extract Sembung leaf. Themethode of extraction by maseration, then analyze is done such as flavonoid, phenolic total, antioxidantcapacity, vitamin C, IC50, and determine volatil compound on the best treatment by GC-MS. The resultshowed that very singnificant effect to all parameters analysis, and ethyl acetate extract on the tip ofSembung leaf is the best treatment, that consist of flavonoid (204,58 mg QE/g db), phenolic total (225,33mg GAE/ g db), vitamin C (451,92 mg/g db), antioxidant capacity (501,97 mg GAEAC/g db), and IC50%(37,09 ppm). The GC-MS analysis showed there are benzena compound, monoterpene (camphor,L-berneol), sesquiterpene (?-guaiene, caryophyllene, humulene) and diterpene (neophytadiene) on thebest treatment.
Potensi Ekstrak Tumbuhan Sebagai Pengawet Produk Pangan I Nengah Kencana Putra
Media Ilmiah Teknologi Pangan (Scientific Journal of Food Technology) Vol 1, No. 1, 2014
Publisher : Master Program of Food Science and Technology, Faculty of Agricultural Technology, Udayana University

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Abstract

Nowadays, the use of natural antimicrobials such as plants extracts to preserve food get much attention of the researchers. This is related to the increasing of public concern over synthetic chemical food preservatives. Various types of plants had been declared can produce extracts that effectively inhibited the growth of food-contaminating microbes, such as methanol and ethanol extracts of bark Saccoglottis gabonensis, effectively inhibited the growth of Leuconostoc mesenteroides and Lactobacillus plantarum; extracts of onion and red pepper inhibited Candida crucei and Candida utilis; ethanol and water extracts of Eugenia Jambos had antimicrobial properties against bacteria such as Staphylococcus aureus, Yersenia enterocolitica, Staphylococcus hominis, Staphylococcus cohnii, Staphylococcus warneri; Picung seed extract (Pagium edule) inhibited the growth of Staphylococcus aureus; and ethanol extract of Salvia pratensis leaves inhibited Escherichia coli, Bacillus cereus and Saccharomyces cerevisiae. Extraction of antimicrobial compounds from plant material could be done by using different types of solvents. Among the various types of solvents, ethanol and methanol solvents are most commonly used.Keyword: antimicrobial, plant extract, food preservative
Co-Authors Aditya Degita Rizal Agnes Citra Yolanda Simamora Alberto Sombamori Janggat Alexander Nathanael Yusuf Anabella Nadia Nathaniel Anak Agung Istri Sri Wiadnyani Ayu Nuriya Kiromi Bambang Admadi Harsojuwono Bellariesty Kartika Dewi Bryan Bryan Bryan Bryan Bunga Sari Widyani, Ni Putu Clara Sania Krisanta Dewi Citra Laksmi Agung Putri Elia Agatha Christiani Emma Rahmasari Enita Berena Br Karo Era Ollyvetty Meilani Erika Ary Koesnadi G.P. Ganda Putra Gusti Ayu Kadek Diah Puspawati Hesti Pratiwi I Dewa Gde Mayun Permana I Gede Tirta Yasa I Gusti Ayu Ekawati I Gusti Ngurah Sujana Kusuma I Gusti Putu Bayu Bramtarades I Ketut Suter I Ketut Suter I Komang Ardianta I Komang Ari Andika I Made Ananta Divasti Guna I Made Cahyana Kusuma I Made Edi Widiawan I Made Sugitha I Putu Suparthana I Wayan Rai Widarta I.D.P.K. Pratiwi I.G.A. Ekawati Icha Nabillah Ida Ayu Agung Prawitasari Ida Bagus Ketut Mantra Irvan Kurniawan Simatupang Justicia Febi Estermaria Pandiangan Juwita Mayningsih Andari Putri Ketut Ratnayani Kholista Samsara Kurnia KOMANG AYU NOCIANITRI Luh Putu Trisna Darmayanti Luh Putu Wrasiati M.Pd S.T. S.Pd. I Gde Wawan Sudatha . Made Meigasari Maharantata, Fayza Desti Mahira Oktaviana, Ni Luh Gede Maria Christinela Domithesa Melda Yanti Naibaho Michelle Olivia Isabella Muhammad Eriansyah Al-Hakim Mulyani Sri Ni Kadek Nova Wulandari Ni Ketut Sri Agustini Ni Ketut Sri Agustini Ni Luh Ari Yusasrini Ni Luh Ari Yusasrini, Ni Luh Ni Luh Gde Amritasya Mutiara Ni Luh Putu Diah Rupini Ni Made Indri Hapsari Arihantana Ni Made Prawitasari Ni Made Ria Oka Ni Made Yusa Ni Nyoman Puspawati Ni Putu Putri Dewanty Saraswati Ni Putu Suriani Ni Wayan Wisaniyasa Nicole, Moreen Alesandrina Novelita Olivea Herman NYOMAN SEMADI ANTARA Nyoman Wahyu Meta Wulandari, Nyoman Wahyu Meta P.A.S. Widpradnyadewi P.T. Ina Pandu Prayugo Putri Nathasya br Lahi Putu Adiyasi Wulandari Putu Pande Pande Yashika Putu Rica Galicia Putri Yanti Putu Timur Ina Ronald Surachman Sayi Hatiningsih Sixtian Brema Sembiring Wayan Trisnawati Yustika Ayu Tri Wahyuni Yustika Ayu Tri Wahyuni